Hordeum bulbosum 1 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 10 Copenhagen Bot Garden 130604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 11 Copenhagen Bot Garden 130604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 13 (cult) Stångby Sk 200617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 14 (cult) Stångby Sk 200617 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 2 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 3 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 5 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 6 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 3 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 4 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 5 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 6 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 7 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 8 Lund Bot Garden 130619 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 9 Hököpinge, Skåne 790824 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 22 E of Videholm, Stora Hammar Sk 210620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum 1 Skala Sikaminnias, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 12 Copenhagen Bot Garden 130604 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 4 Kallonis Salt Pans, Lesvos, Greece 130509 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 7 NE of Skalochori, Lesvos, Greece 100510 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 8 NE of Skalochori, Lesvos, Greece 100510 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum bulbosum 9 NE of Skalochori, Lesvos, Greece 100510 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum cf murinum 1 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum cf murinum 2 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum cf murinum 3 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum cf murinum 4 Magaluf, Mallorca 110422 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum geniculatum 1 above Metsovon, Greece 180627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum geniculatum 2 above Metsovon, Greece 180627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 1 Höllviken Sk 120717 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum jubatum 2 Höllviken Sk 120717 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum leporinum 1 Hierapetra, Crete 110330 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum leporinum 2 Hierapetra, Crete 110330 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum leporinum 3 Alanya, Turkey 090405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum leporinum 4 Alanya, Turkey 090405 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 1 SSE of Kalloni, Lesvos, Greece 100511 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 2 SSE of Kalloni, Lesvos, Greece 100511 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 3 the Evros estuary, Greece 0606007 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 4 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 5 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum 6 Copenhagen Bot Garden 150812 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum ssp gussoneanum 1 Nagyiváni puszta, Hortobágy, Hungary 240511 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum marinum ssp gussoneanum 2 Nagyiváni puszta, Hortobágy, Hungary 240511 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 1 Lilla Hammar, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 2 Lilla Hammar, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 3 Lilla Hammar, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 5 Lilla Hammar, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 6 Höllviken Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum murinum 7 Höllviken Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 1 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 10 Flygeltofta, Saxtorp, Skåne 790627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 11 Flygeltofta, Saxtorp, Skåne 790627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 12 Lilla Hammar, Stora Hammar Sk 150620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 13 Lilla Hammar, Stora Hammar Sk 150620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 14 Lilla Hammar, Stora Hammar Sk 150620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 15 Lilla Hammar, Stora Hammar Sk 150620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 16 E of Videholm, Stora Hammar Sk 150627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 17 E of Videholm, Stora Hammar Sk 150627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 18 E of Videholm, Stora Hammar Sk 150627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 19 E of Videholm, Stora Hammar Sk 150627 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 2 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 20 E of Videholm, Stora Hammar Sk 210620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 21 E of Videholm, Stora Hammar Sk 210620 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 3 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 4 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 5 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 6 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 7 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 8 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum secalinum 9 Videholm, Stora Hammar Sk 130608 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum spontaneum 1 Agia Galini, Crete 110331 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum spontaneum 2 Agia Galini, Crete 110331 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).

Hordeum spontaneum 3 Agia Galini, Crete 110331 - Photo: Jan Thomas Johansson (© 2014 Jan Thomas Johansson).